 |
| Restraint system: 45 phrases in 13 subjects |
| Astronautics | 2 |
| Automobiles | 11 |
| Aviation | 7 |
| Aviation medicine | 4 |
| Building structures | 1 |
| Construction | 2 |
| Firefighting and fire-control systems | 2 |
| Insurance | 1 |
| Loading equipment | 1 |
| Medical | 6 |
| Military | 3 |
| Technology | 2 |
| Transport | 3 |